<meta charset="utf-8">
<body>
<a href="https://www.baidu.com/" target="1">点击打开百度</a><br>
<a href="http://www.so.com/" target="1">点击打开搜狐</a><br>
<a href="http://www.bdqn.cn/" target="1">点击打开北大青鸟</a><br>
<hr/>
<iframe width="1300"  height="800" name="1" src="">
   </iframe>
</body>